Cited by 830SARS-CoV-2 and COVID-19 ResearchCOVID-19 Clinical Research StudiesRespiratory Support and Mechanisms

Anti-spike IgG causes severe acute lung injury by skewing macrophage responses during acute SARS-CoV infection

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Liu, Li, Wei, Qiang, Lin, Qingqing, Fang, Jun, Wang, Haibo, Kwok, Hauyee, Tang, Hangying, Nishiura, Kenji +11 more·2019·JCI Insight

Abstract

Newly emerging viruses, such as severe acute respiratory syndrome coronavirus (SARS-CoV), Middle Eastern respiratory syndrome CoVs (MERS-CoV), and H7N9, cause fatal acute lung injury (ALI) by driving hypercytokinemia and aggressive inflammation through mechanisms that remain elusive. In SARS-CoV/macaque models, we determined that anti-spike IgG (S-IgG), in productively infected lungs, causes severe ALI by skewing inflammation-resolving response. Alveolar macrophages underwent functional polarization in acutely infected macaques, demonstrating simultaneously both proinflammatory and wound-healing characteristics. The presence of S-IgG prior to viral clearance, however, abrogated wound-healing responses and promoted MCP1 and IL-8 production and proinflammatory monocyte/macrophage recruitment and accumulation. Critically, patients who eventually died of SARS (hereafter referred to as deceased patients) displayed similarly accumulated pulmonary proinflammatory, absence of wound-healing macrophages, and faster neutralizing antibody responses. Their sera enhanced SARS-CoV-induced MCP1 and IL-8 production by human monocyte-derived wound-healing macrophages, whereas blockade of FcγR reduced such effects. Our findings reveal a mechanism responsible for virus-mediated ALI, define a pathological consequence of viral specific antibody response, and provide a potential target for treatment of SARS-CoV or other virus-mediated lung injury.

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  • S-specific IgG antibodies have been suggested to cause acute pulmonary injury in vaccine challenge animal models of SARS-CoV.

    “S-specific IgG antibodies have been suggested to cause acute pulmonary injury in vaccine challenge animal models of SARS-CoV (Liu et al., 2019)”

    From A thermostable mRNA vaccine against COVID-19 (2020) · cites this paper as Liu et al., 2019

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Authors
Liu, L., Wei, Q., Lin, Q., Fang, J., Wang, H., Kwok, H., Tang, H., Nishiura, K., Peng, J., Tan, Z., Wu, T., Cheung, K.-W., Chan, K.-H., Alvarez, X., Qin, C., Lackner, A., Perlman, S., Yuen, K.-Y., & Chen, Z.
Affiliations
  • Shenzhen Third People’s Hospital (CN)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
  • University of Hong Kong (HK)
  • Tulane University (US)
  • University of Iowa (US)
Corresponding author
  • Liu, Li
  • Chen, Zhiwei
Venue
JCI Insight
Published
2019-02-21
Volume
4
Issue
4
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2915839491
Cited by
830
References
53
Citations by year
2026: 7 · 2025: 14 · 2024: 27 · 2023: 46 · 2022: 101 · 2021: 246 · 2020: 387 · 2019: 1
FWCI
140.99
Type
journal article
Language
en
Open access
Locations
  • JCI Insight (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. NIH , TNPRC, University Development Fund/Li Ka Shing Faculty of Medicine Matching Fund of the University of Hong Kong (RO1HL080211,RR00164,RO1060699)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Respiratory Support and Mechanisms
Keywords
SARS-CoV, acute lung injury, anti-spike IgG, alveolar macrophages, macrophage polarization, MCP-1, interleukin-8, Fc gamma receptor, neutralizing antibodies, cytokine storm, viral infection, macaque model, monocyte recruitment
MeSH terms
Adult, Aged, Aged, 80 and over, Animals, Antibodies, Viral, Cell Line, Disease Models, Animal, Female, Humans, Immunoglobulin G, Immunization, Passive, Lung, Macaca mulatta, Male, Middle Aged, Vaccinia virus, Viral Vaccines, Macrophages, Alveolar, Severe Acute Respiratory Syndrome, Severe acute respiratory syndrome-related coronavirus, Acute Lung Injury, Young Adult, Antibodies, Neutralizing, Spike Glycoprotein, Coronavirus

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